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Diffstat (limited to 'dot_config/containers/storage.conf.tmpl')
| -rw-r--r-- | dot_config/containers/storage.conf.tmpl | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/dot_config/containers/storage.conf.tmpl b/dot_config/containers/storage.conf.tmpl new file mode 100644 index 0000000..62dd35c --- /dev/null +++ b/dot_config/containers/storage.conf.tmpl @@ -0,0 +1,32 @@ +{{- $machineRole := default "host" (index . "machineRole") -}} +{{- if eq $machineRole "vm" -}} +# Rootless podman storage configuration. +# +# The VM uses ext4, so use the kernel overlay driver. runroot/graphroot default +# to $XDG_RUNTIME_DIR/containers and $XDG_DATA_HOME/containers/storage. + +[storage] +driver = "overlay" + +[storage.options.overlay] +# Kernel >=5.13 supports rootless overlay natively on the VM, so leave +# mount_program unset and avoid fuse-overlayfs. +{{- else -}} +# Rootless podman storage configuration. +# +# Uses the native kernel btrfs graph driver — much faster than fuse-overlayfs +# (especially `podman commit`) because layers are real btrfs subvolumes with +# CoW snapshots, no FUSE userspace round-trip. +# +# Switching driver requires a one-time `podman system reset --force`; the +# overlay/fuse-overlay on-disk layout is incompatible. See the migration +# helper at the dotfiles repo root (migrate-podman-to-btrfs.sh). +# +# graphroot/runroot left at defaults: +# graphroot = $XDG_DATA_HOME/containers/storage +# runroot = $XDG_RUNTIME_DIR/containers +# both are on btrfs in this setup (root fs is btrfs). + +[storage] +driver = "btrfs" +{{- end }} |